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Choose Resistant Varielies

By planting a variety with high resistance, you can Prevent
a great deal of trouble right at the start, Much progress hag
already been made in this work, so when you're checking
plant catalogs, be sure to look for such terme as inpaune or
slightly susceptible in descriptions of Plant resistance,

Dr. Byron ‘T, Shaw, Agriculture Research Service Admin-
istrator, rates the importance of resistant varicties as follows:
“The ultimate answer (10 the chemical residue problem) is
the breeding of plants that have natural resistance to insect
attack. . 2. Onee yOu get to that stage, you just plant one
kind of sced instead of another,”

An example of breeding work underway is the alfempt to
develop cotton varieties that would starve some coslly insects
out of fields by removing most of the nectar they relish ag
food. A comparison of one popular variety with a new Se.
lection showed that there were 7 to 10 times as many leaf.
worms and loopers on the old variety as on the ney one,

Sometimes a Plant is more likely to escape infection when
it matures before the Season of disease infection occurs, the
way carly maturing, paialo varieties may escape late blipht
disease, Other times, the fact that a Plant is drought resistant
can help increase its defenses against attack,

The list of vegetable varieties, resistant o one or another
disease or pest, js Browing all the time. To prove this, com.
pare the latest edition of a vegetable sced catalog with One
Printed 5 years ago. In many cases, 4 to % of the varieties

246

AEE EY LTT PCE Ere MY

Protection Against The Buys 247

available today are resistant to a Specific trouble. For in-

formation on Meet -resistant vexetable plants, cheex the seed
catalop, visit. the local seed Store, or write YOur agricultural
college.

Healthy prow

( th is one of the best natural deterrents against
both disease

and bugs, may be Possible for 4 Strain. of
com to Me developed Which has low earworm damage because
the ear is so Opht that the ecanvoring can't Penetrate, Or

wines: (such ag Squash) may be 50 tough that borers can't
kel & start,

_ tn 1903 fomato varicticg and breeding lines were reported
tmat could resist leaf mine In recent years tomatoes have
been reported that resist spider Miles, potato ‘aphids, iohacee
i flea beetle: and whitcflies. The Tesistance reporied ta spider
j mites and Potato aphids is in horticulturatty desirable lines
that Possess Multiple disease resistance, This means fvo-jor-
one benefits for the Rardeners who Work with fomatoes that
1 can handle hot), Insects and disease,
Resistance to B insect Species has been re
! crucifers—cahhape, broccoli, cauliflower, etc, Inscets studied «
include the cabbage lonper, aphid, Maggot, and worm, Re.
sistance to the most destructiyg insect of beans, the Mexican
bean beetle, has also been reported. In some Cases, “near

imatunity exists,” regarding the Potato leafhepper and snap
and lima beans,

Ported aniong the

The inescapable fact is that the Orpa
able allies, thanks to the Cver-developing resistant varieties
And, in addition 19 working with disease-free seeds and
plants, there's something else he can do—run his garden on
soundly organic PUNciples of annual crop rotation plus strict
sanitary Practices in the field. Htere are 7 recommended
garden practices Which should keep discas

! SC either completely
out of the garden or hold it to an absolute Minimum,

nic grower has valu.

t.. . :
Work with resistant varieties ond seeds

Study the Catalogs carefully, and when you Order
species Or variety, make SUre it is disease Fesistant for your

area. If you Pay clos i ant and seed cata.
logs, you'll hotice th f i

Jo mehided
descriptions and general information,

a new

In plant